Grease and gas trap for waste-pipes of sinks



(No Model.) zsheets-sh'eet 1. 0. A; JACOBY. GREASE AND GAS TRAP FOR WASTE'PIPBS OF- SI-NKS. No. 549,967.

Pathted Nov; 19; 1895;,

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0. A. JACOBY. GREASE AND GAS TRAP FOR WASTE PIPES OF SINKS.

No. 549,967. Patented NOV. 19, 1895.

I r VII/171]]IIIIm/ll/IWIIIII/II/M/IIII/WIWMI/IIIIMIll/Ila a wmmsei'. 54. 0844M ANDREW B.GRANAM, PKGTO'LITHQWASHINGTON. QC.

UNITED STATES PATENT I CHARLES ALBERT JACOBY, OF BLOOMINGTON, ILLINOIS.

GREASE AND GAS TRAP FOR WASTE-PIPES OF SINKS.

SPECIFICATION forming part of Letters Patent No. 549,967, dated November 19,. 1895.

Application fil d May26, 1894. Renewed August 22,1895. Serial No. 560,174. (No model.)

To aZZ whom it may concern.-

Be it known that I, CHARLES ALBERT J A- COBY, a citizen of the United States, residing at Bloomington, in the county of McLean and State of Illinois, have invented certain new and useful Improvements in Grease and Gas Traps for WVaste-Pipes of Sinks; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

The special object of the invention is the introduction into the construction of a grease and sewer-gas trap of a movable inner box which will hold all greasy substances until removed, and to be constructed in such a manner and placed in such a position as to not interfere with workings of trap, the same being mainly applicable to waste-pipes of kitchensinks.

Figure 1 of the drawings is a perspective view, partly broken away, and Figs. 2 and 3, vertical sections.

In the drawings, A and B represent two metallic boxes, the latter fitting in the former to within about four inches of the bottom and resting upon the partition a, which fits a groove in the bottom of box B," thus making a complete water-joint. The inner boxB has around its upper edge the round bead b and in the open bottom a strip 5 around the inside edge. To this is bolted a ground-brass seat b whose joint is formed of cement, the

- said seat being provided with a solid strip it to move on and be guided by the screwguides c c.

c are upper plate-ribs, which stand over the seat b when the perforations b on the lower plate 19 are open.

The box B has hand-holds b, for convenience in lifting it out of or into the box A, and a space b in which accumulates all greasy substances until it is desired to take it out and remove its contents. Around the edge of outer box or casing A is formed the flange a and about the outer edge a flexible gasket a upon which is clamped the lid A, so as to make a perfectly water-tight joint.

' E is the inlet-pipe, which I provide with a brass connection e, passing through and properly connecting with the side of box A.

F is a metallic slide movable in a groove, so as to be detachable when the lid A has been taken off, the purpose of this slide being to form a partition between the outlet andmain box.

G is the outlet-pipe having the air-vent 9 above and the outlet '9 below, so as to prevent the trap from siphoning and form a connection with the waste-pipe.

The lid A has plugged openings a 01 which may be used for local vents whenever it may be deemed necessary.

The greasy water enters through the inletpipe E, While the partition compels it to pass up through plate 0 and down through plate 0 before it can reach the outlet-pipe G on its way to the waste-pipe and sewer, the trap of course being always full up to said pipe G. The water in passing from inlet-pipe E to the outlet-pipe G leaves its grease in the space 19 until the box B needs emptying. To do this the lid is removed by loosening the thumbscrews on the clamps I-I. Then by moving the lever D slightly, and with it the movable plate, to which it is attached, a water-tight bottom is made for the box B, which may be raised by means of the handpieces and taken out to have its contents emptied.

What I claim as new, and desire to protect by Letters Patent, is

The combination with an outer stationary box, of a movable inner box, the latter proinside edge-strip on an open vided W bolted to said strip, a ribbed bottom and perforated plate and a lever connected by an end-pivoted rod With said plate, the said lever being movable over the seat to open or close the perforations as and for the purpose set forth.

In testimony whereof I effix my signature in presence of two Witnesses.

CHAS. ALBERT JACOBY.

\Vitnesses:

J. W. PROBASCO, 1 J. JAooBY. 

